ABAP Select data from SAP table CRMT_SRCL_MFORM_FIELDS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMT_SRCL_MFORM_FIELDS table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to CRMT_SRCL_MFORM_FIELDS. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the CRMT_SRCL_MFORM_FIELDS table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_CRMT_SRCL_MFORM_FIELDS TYPE STANDARD TABLE OF CRMT_SRCL_MFORM_FIELDS,
      WA_CRMT_SRCL_MFORM_FIELDS TYPE CRMT_SRCL_MFORM_FIELDS,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <CRMT_SRCL_MFORM_FIELDS> TYPE CRMT_SRCL_MFORM_FIELDS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRMT_SRCL_MFORM_FIELDS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRMT_SRCL_MFORM_FIELDS
  INTO TABLE IT_CRMT_SRCL_MFORM_FIELDS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_SRCL_MFORM_FIELDS
*  INTO TABLE @DATA(IT_CRMT_SRCL_MFORM_FIELDS2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_CRMT_SRCL_MFORM_FIELDS INDEX 1 INTO DATA(WA_CRMT_SRCL_MFORM_FIELDS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRMT_SRCL_MFORM_FIELDS ASSIGNING <CRMT_SRCL_MFORM_FIELDS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_SRCL_MFORM_FIELDS>-REF_DESCRIPTION = 1.
<CRMT_SRCL_MFORM_FIELDS>-TRH_ID = 1.
<CRMT_SRCL_MFORM_FIELDS>-TRH_DESCRIPTION = 1.
<CRMT_SRCL_MFORM_FIELDS>-SRCL_TRH_1LVL = 1.
<CRMT_SRCL_MFORM_FIELDS>-SRCL_TRH_2LVL = 1.

ENDLOOP.

LOOP AT IT_CRMT_SRCL_MFORM_FIELDS INTO WA_CRMT_SRCL_MFORM_FIELDS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_3LVL, sy-vline,
  WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_4LVL, sy-vline,
  WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_5LVL, sy-vline,
  WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_6LVL, sy-vline,
  WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_7LVL, sy-vline,
  WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_8LVL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_SRCL_MFORM_FIELDS you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_CRMT_SRCL_MFORM_FIELDS TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_CRMT_SRCL_MFORM_FIELDS INTO WA_CRMT_SRCL_MFORM_FIELDS.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit TSTLC, internal->external for field SRCL_TRH_1LVL
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_1LVL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_1LVL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field SRCL_TRH_2LVL
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_2LVL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_2LVL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field SRCL_TRH_3LVL
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_3LVL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_3LVL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field SRCL_TRH_4LVL
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_4LVL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_4LVL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field SRCL_TRH_5LVL
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_5LVL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_5LVL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field SRCL_TRH_6LVL
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_6LVL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_6LVL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field SRCL_TRH_7LVL
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_7LVL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_7LVL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field SRCL_TRH_8LVL
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_8LVL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_8LVL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field SRCL_TRH_9LVL
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_9LVL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_9LVL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field SRCL_TRH_10LVL
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_10LVL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SRCL_MFORM_FIELDS-SRCL_TRH_10LVL.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CRMT_SRCL_MFORM_FIELDS_STR, 
REF_DESCRIPTION TYPE STRING,
TRH_ID TYPE STRING,
TRH_DESCRIPTION TYPE STRING,
SRCL_TRH_1LVL TYPE STRING,
SRCL_TRH_2LVL TYPE STRING,
SRCL_TRH_3LVL TYPE STRING,
SRCL_TRH_4LVL TYPE STRING,
SRCL_TRH_5LVL TYPE STRING,
SRCL_TRH_6LVL TYPE STRING,
SRCL_TRH_7LVL TYPE STRING,
SRCL_TRH_8LVL TYPE STRING,
SRCL_TRH_9LVL TYPE STRING,
SRCL_TRH_10LVL TYPE STRING,
ACT_THRESHOLD TYPE STRING,
THRESHOLD_NOTIF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_SRCL_MFORM_FIELDS_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_CRMT_SRCL_MFORM_FIELDS_STR-REF_DESCRIPTION sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-TRH_ID sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-TRH_DESCRIPTION sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-SRCL_TRH_1LVL sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-SRCL_TRH_2LVL sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-SRCL_TRH_3LVL sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-SRCL_TRH_4LVL sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-SRCL_TRH_5LVL sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-SRCL_TRH_6LVL sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-SRCL_TRH_7LVL sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-SRCL_TRH_8LVL sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-SRCL_TRH_9LVL sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-SRCL_TRH_10LVL sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-ACT_THRESHOLD sy-vline 
WA_CRMT_SRCL_MFORM_FIELDS_STR-THRESHOLD_NOTIF sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.